Electronegativities found on the Pauling scale

From left to right across the periodic table:

• atomic radius decreases
• ionization energy increases
• electronegativity increases

• Symbol: $\mathrm{H}$
• Group: 1
• Period: 1
• Electronegativity: 2.20

• Symbol: $\mathrm{He}$
• Group: 18
• Period: 1
• Electronegativity: none

• Symbol: $\mathrm{Li}$
• Group: 1
• Period: 2
• Electronegativity: 0.98

• Symbol: $\mathrm{Be}$
• Group: 2
• Period: 2
• Electronegativity: 1.57

• Symbol: $\mathrm{B}$
• Group: 13
• Period: 2
• Electronegativity: 2.04

• Symbol: $\mathrm{C}$
• Group: 14
• Period: 2
• Electronegativity: 2.55

• Symbol: $\mathrm{N}$
• Group: 15
• Period: 2
• Electronegativity: 3.04

• Symbol: $\mathrm{O}$
• Group: 16
• Period: 2
• Electronegativity: 3.44

• Symbol: $\mathrm{F}$
• Group: 17
• Period: 2
• Electronegativity: 3.98

• Symbol: $\mathrm{Ne}$
• Group: 18
• Period: 2
• Electronegativity: none

• Symbol: $\mathrm{Na}$
• Group: 1
• Period: 3
• Electronegativity: 0.93

• Symbol: $\mathrm{Mg}$
• Group: 2
• Period: 3
• Electronegativity: 1.31

• Symbol: $\mathrm{Al}$
• Group: 13
• Period: 3
• Electronegativity:1.61

• Symbol: $\mathrm{Si}$
• Group: 14
• Period: 3
• Electronegativity: 1.90

• Symbol: $\mathrm{P}$
• Group: 15
• Period: 3
• Electronegativity: 2.19

• Symbol: $\mathrm{S}$
• Group: 16
• Period: 3
• Electronegativity: 2.58

• Symbol: $\mathrm{Cl}$
• Group: 17
• Period: 3
• Electronegativity: 3.16

• Symbol: $\mathrm{Ar}$
• Group: 18
• Period: 3
• Electronegativity: none

• Symbol: $\mathrm{K}$
• Group: 1
• Period: 4
• Electronegativity: 0.82

• Symbol: $\mathrm{Ca}$
• Group: 2
• Period: 4
• Electronegativity: 1.00

• Symbol: $\mathrm{Sc}$
• Group: 3
• Period: 4
• Electronegativity: 1.36

• Symbol: $\mathrm{Ti}$
• Group: 4
• Period: 4
• Electronegativity: 1.54

• Symbol: $\mathrm{V}$
• Group: 5
• Period: 4
• Electronegativity: 1.63

• Symbol: $\mathrm{Cr}$
• Group: 6
• Period: 4
• Electronegativity: 1.66

• Symbol: $\mathrm{Mn}$
• Group: 7
• Period: 4
• Electronegativity:1.55

• Symbol: $\mathrm{Fe}$
• Group: 8
• Period: 4
• Electronegativity: 1.83

• Symbol: $\mathrm{Co}$
• Group: 9
• Period: 4
• Electronegativity: 1.88

• Symbol: $\mathrm{Cu}$
• Group: 11
• Period: 4
• Electronegativity: 1.90

• Symbol: $\mathrm{Zn}$
• Group: 12
• Period: 4
• Electronegativity: 1.65

• Symbol: $\mathrm{Ga}$
• Group: 13
• Period: 4
• Electronegativity: 1.81

• Symbol: $\mathrm{Ge}$
• Group: 14
• Period: 4
• Electronegativity: 2.01

• Symbol: $\mathrm{As}$
• Group: 15
• Period: 4
• Electronegativity: 2.18

• Symbol: $\mathrm{Se}$
• Group: 16
• Period: 4
• Electronegativity: 2.55

• Symbol: $\mathrm{Br}$
• Group: 17
• Period: 4
• Electronegativity: 2.96

• Symbol: $\mathrm{Kr}$
• Group: 18
• Period: 4
• Electronegativity: 3.00

• Symbol: $\mathrm{Rb}$
• Group: 1
• Period: 5
• Electronegativity: 0.82

• Symbol: $\mathrm{Sr}$
• Group: 2
• Period: 5
• Electronegativity: 0.95

• Symbol: $\mathrm{Y}$
• Group: 3
• Period: 5
• Electronegativity: 1.22

• Symbol: $\mathrm{Zr}$
• Group: 4
• Period: 5
• Electronegativity: 1.33

• Symbol: $\mathrm{Nb}$
• Group: 5
• Period: 5
• Electronegativity: 1.6

• Symbol: $\mathrm{Mo}$
• Group: 6
• Period: 5
• Electronegativity: 2.16

• Symbol: $\mathrm{Tc}$
• Group: 7
• Period: 5
• Electronegativity: 1.9

• Symbol: $\mathrm{Ru}$
• Group: 8
• Period: 5
• Electronegativity: 2.2

• Symbol: $\mathrm{Rh}$
• Group: 9
• Period: 5
• Electronegativity: 2.28

• Symbol: $\mathrm{Pd}$
• Group: 10
• Period: 5
• Electronegativity: 2.20

• Symbol: $\mathrm{Ag}$
• Group: 11
• Period: 5
• Electronegativity: 1.93

• Symbol: $\mathrm{Cd}$
• Group: 12
• Period: 5
• Electronegativity: 1.69

• Symbol: $\mathrm{In}$
• Group: 13
• Period: 5
• Electronegativity: 1.78

• Symbol: $\mathrm{Sn}$
• Group: 14
• Period: 5
• Electronegativity: 1.96

• Symbol: $\mathrm{Sb}$
• Group: 15
• Period: 5
• Electronegativity: 2.05

• Symbol: $\mathrm{Te}$
• Group: 16
• Period: 5
• Electronegativity: 2.1

• Symbol: $\mathrm{I}$
• Group: 17
• Period: 5
• Electronegativity: 2.66

• Symbol: $\mathrm{Xe}$
• Group: 18
• Period: 5
• Electronegativity: 2.60

• Symbol: $\mathrm{Cs}$
• Group: 1
• Period: 6
• Electronegativity: 0.97

• Symbol: $\mathrm{Ba}$
• Group: 2
• Period: 6
• Electronegativity: 0.89

• Symbol: $\mathrm{La}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.1

• Symbol: $\mathrm{Ce}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.12

• Symbol: $\mathrm{Pr}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.13

• Symbol: $\mathrm{Nd}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.14

• Symbol: $\mathrm{Pm}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.13

• Symbol: $\mathrm{Sm}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.17

• Symbol: $\mathrm{Eu}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.2

• Symbol: $\mathrm{Gd}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.2

• Symbol: $\mathrm{Tb}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.1

• Symbol: $\mathrm{Dy}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.22

• Symbol: $\mathrm{Ho}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.23

• Symbol: $\mathrm{Er}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.24

• Symbol: $\mathrm{Tm}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.25

• Symbol: $\mathrm{Yb}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.1

• Symbol: $\mathrm{Lu}$
• Group: Lanthanoids
• Period: 6
• Electronegativity: 1.27

• Symbol: $\mathrm{Hf}$
• Group: 4
• Period: 6
• Electronegativity: 1.3

• Symbol: $\mathrm{Ta}$
• Group: 5
• Period: 6
• Electronegativity: 1.5

• Symbol: $\mathrm{W}$
• Group: 6
• Period: 6
• Electronegativity: 2.36

• Symbol: $\mathrm{Re}$
• Group: 7
• Period: 6
• Electronegativity: 1.9

• Symbol: $\mathrm{Os}$
• Group: 8
• Period: 6
• Electronegativity: 2.2

• Symbol: $\mathrm{Ir}$
• Group: 9
• Period: 6
• Electronegativity: 2.20

• Symbol: $\mathrm{Pt}$
• Group: 10
• Period: 6
• Electronegativity: 2.28

• Symbol: $\mathrm{Au}$
• Group: 11
• Period: 6
• Electronegativity: 2.54

• Symbol: $\mathrm{Hg}$
• Group: 12
• Period: 6
• Electronegativity: 2.00

• Symbol: $\mathrm{Tl}$
• Group: 13
• Period: 6
• Electronegativity: 1.62

• Symbol: $\mathrm{Tb}$
• Group: 14
• Period: 6
• Electronegativity: 1.87

• Symbol: $\mathrm{Bi}$
• Group: 15
• Period: 6
• Electronegativity: 2.02

• Symbol: $\mathrm{Po}$
• Group: 16
• Period: 6
• Electronegativity: 2.0

• Symbol: $\mathrm{At}$
• Group: 17
• Period: 6
• Electronegativity: 2.2

• Symbol: $\mathrm{Rn}$
• Group: 18
• Period: 6
• Electronegativity: 2.2

• Symbol: $\mathrm{Fr}$
• Group: 1
• Period: 7
• Electronegativity: 0.7

• Symbol: $\mathrm{Ra}$
• Group: 2
• Period: 7
• Electronegativity: 0.9

• Symbol: $\mathrm{Ac}$
• Group: 3
• Period: 7
• Electronegativity: 1.1

• Symbol: $\mathrm{Th}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Pa}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.5

• Symbol: $\mathrm{U}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.38

• Symbol: $\mathrm{Np}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.36

• Symbol: $\mathrm{Pu}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.28

• Symbol: $\mathrm{Am}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.13

• Symbol: $\mathrm{Cm}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.28

• Symbol: $\mathrm{Bk}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Cf}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Es}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Fm}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Md}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{No}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Lr}$
• Group: Actinoids
• Period: 7
• Electronegativity: 1.3

• Symbol: $\mathrm{Rf}$
• Group: 4
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Db}$
• Group: 5
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Sg}$
• Group: 6
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Bh}$
• Group: 7
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Hs}$
• Group: 8
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Mt}$
• Group: 9
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Ds}$
• Group: 10
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Rg}$
• Group: 11
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Cn}$
• Group: 12
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{UuT}$
• Group: 13
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Fl}$
• Group: 14
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Uup}$
• Group: 15
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Lv}$
• Group: 16
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Uus}$
• Group: 17
• Period: 7
• Electronegativity: none

• Symbol: $\mathrm{Uuo}$
• Group: 18
• Period: 7
• Electronegativity: none